Home / 13,491.03-20,236.42-7,567.91

Finding the Fourth Proportional to 13,491.03, 20,236.42 and 7,567.91

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Solution

The fourth proportional to 13,491.03, 20,236.42 and 7,567.91 is: 11,351.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.03 : 20,236.42 = 7,567.91 : x
  2. Step 2: Convert to fraction form
    13,491.03/20,236.42 = 7,567.91/x
  3. Step 3: Cross multiply
    13,491.03x = 20,236.42 × 7,567.91
  4. Step 4: Simplify right side
    13,491.03x = 153,147,389.45
  5. Step 5: Solve for x
    x = 153,147,389.45/13,491.03
  6. Step 6: Final answer
    x = 11,351.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.